Pump.



M. c. WALLS PUMP.

APPLICATlQN FILED AUG-3!. l9l5.

1,206,626. v Patented Nov. 28, 1916.

3 SHEETS-SHEET I.

. M. C. WALLS.

- PUMP.

APPLICATION men AUG-3!. 1915.

1,206,626. Patented Nov. 28, 1916.

3 SHEETSSHEET 2- v 3 3 v j wuwwl oz 6w Manama/Wall)" M. C. WALLS.

PUMP.

APPLICAHON m5!) AUG-31. 1915.

1 ,206,626. Patented Nov. 28, 19 16.

3 SHEETS-SHEET 3- Ma/whoa Z1 JYQI'MIZCZWQZU MARION C. WALLS, 0F CLAYTON, INDIANA.

PUMP.

Specification of Letters Iatent.

Patented Nov. 28, 1916.

Application filed August 31, 1915. Serial No. 48,267.

To all whom it may concern:

Be it known that I, MARION G. WALLS, a citizen of the United States, residing at Clayton, in the county of Hendricks and State of Indiana, have invented new and useful Improvements in Pumps, of which the following is a specification.

This invention relates to pneumatic force pumps and it consists in the novel features hereinafter described and claimed.

An object of the invention is to provide a pump adapted to elevate a steady stream of water in a short time to afford an ample quantity of water for use for all ordinary purposes. The pump is especially designed to deliver water where desired under as low air pressure as possible to make the flow constant or continuous. I

With these and other objects in view the pump comprises a cylinder provided at its lower end with an inlet valve through which the water may be permitted to flow into the cylinder at intervals. A water outlet pipe is connected with the cylinder and is adapted to lead water from the same in the vicinity of the bottom thereof. The cylinder is provided at its top with an air inlet valve and an air exhaust valve, there being means provided for closing the air inlet valve when the air exhaust valve is open and vice versa. The said means includes in part a float mounted for movement in the cylinder along a rod which is pivotally connected at its upper end to a lever. The said lever in turn is connected with a weight and the weight is arranged to move over an axis from one side to the other and vice versa of a vertical plane lying through the said axis. A walking beam is operatively connected with the air inlet and air exhaust valves,

and means is provided in conjunction with the said weight for swinging the walking beam as the weight is swung from one side of the vertical plane through its axis to the other side, whereby the movements of the air inlet valve and air exhaust valve are accomplished. -This general statement of the structure of the pump covers approximately a single unit of the pump. Two or more units of the pump may be operatively connected together, whereby the air may originally be led into one unit and from thence be conducted into the next or succeeding unit. Also the water outlet pipes are connected together at a point above the units and the air which is exhausted from both units is injected into the co-lunm of water which is elevated through the connected water outlet pipes.

1n the accompanying drawings: Figure 1 is a vertical sectional view of the pump in which a single unit is employed. Fig. 2 is a similar view of a pump in which two units are used and operatively connected together. Fig. 3 is a horizontal sectional view of a unit of the pump. Fig. l is a side elevation of parts used in the pump. Fig. is an edge view of the same. Fig. 6 is a side view of a beam used in the pump.

The structure of the pump which embraces but a single unit is as follows: It consists of a cylinder 1 closed in any suitable manner at its upper and lower ends by heads 2. A body 3 is screw threaded through the lowermost head 2 and at one side is provided with upstanding lugs l. An arm 5 is pivoted to the lugs l and carries a valve 6 which nor mally rests by gravity upon the upper surface of the body 3. A curbing 7 is located upon the lowermost head 2. of the cylinder and surrounds the body 3 and is adapted to conline a volume of water over and around the valve 6, thereby serving as a liquid seal for preventing the escape of air from the cylinder between the valve 6 and the upper surface of the body 3, when the water is low in the cylinder.

As shown in Fig. l of the drawings a water outlet. pipe 8 passes through the uppermost. head 2 of the cylinder 1 and extends down into the said cylinder and terminates at its lower end-in the vicinity of the lowermost head 2 thereof at a point below the level of the upperedge of the curbing 7, This outlet pipe 8 may lead to the top of the well and the said outlet pipe is provided at a point above the uppermost head 2 with ,a check va ve 9 of conventional pattern. An air supply pipe 10 leads into the cylinder 1 through the uppermost head 2 thereof and may be connected r. ith anv suitable source of air supply .(not shown). The pine 10 is provided at a point below the uppermost head 2with a port 11 and a valve member 12 is slidablv mounted in the lower end of the pipe 10. The valve member 12 is provided at its lower end with an eye 13. An air exhaust or outlet pipe 14 also passes through the uppermost head 2 of the cylinder 1 and the said exhaust pipe 14 is provided at its side with a port 15. A valve member 16 is slidably mounted in the lower end of the exhaust pipe 14 and the said valve member 16 is provided at its lower end with an eye 17. A cross bar 18 connects the lower end portions of the pipes 10 and 14 together, and an arm 19 depends from the said cross bar. A walking beam 20 is pivoted at a point midway between its ends to the lower portion of the arm 19 and the end portions of the said walking beam are loosely received in the eyes 13 and 17 of the valve members 12 and 16 respectively. The walking beam 20 is fiXedto a shaft 21 which in turn is journaled in the arm 19, and a block 22 is fiXedto the shaft 21. The block 22 is provided with spaced up-standing ears 23. An arm 24 is loosely mounted upon the shaft 21 adjacent the block 22, and is provided with an outstanding pin 25 which lies between the ears 23 of the block 22. A weight 26 is mounted upon the upper end of the arm 24 and when the arm 24 isswung upon the shaft 21, the said weight moves from one side of a vertical plane through the axis of the shatt. 21 to the other side, and vice versa. A lever 27 is fixed at one end to the arm 24 and a head 28 is pivotally connected with the free end portion of the arm 27. A rod 29 is connected at its upper end with the head 23, and the said rod 29 is provided at its lower end with a stop 30. A float 31 is slidably mounted upon the rod 29 and is limited in its sliding movement by the head at the upper end of the rod and the stop 30 at the lower end thereof.

, The operation of this form of the pump is as follows: Assuming that a quantity of water has been admitted into" the cylinder 1 through the body 3 and past the valve (3 and the float 31 has been elevated and brought in contact with the head 28. Therefore the action of the float 31 has moved the free end of the arm 27 in an upward direction, whereby the arm 24 and the weight 26 carried at the upper end thereof have been swung toward the air inlet pipe 10. Also the pin 25 has encountered one of the ears 23 and swung the walking beam 20 so that the upper end of the valve member 12 is moved below the port 11 and the upper end of the valve member 16 is moved above the port'15 in the pipe 14. Air is then admitted into the cylinder 1 through the pipe 10 and the port 11. The pressure of the air in the cylinder forces the water in a downward direction and up and out through the outlet pipe 8. As the level of the water in the cylinder 1 lowers, the float 31 follows the same and when the float comes in contact with the stop 30 the rod 29 is moved longitudinally in a downward direction and the free end of the lever 27 is carried with it, whereby the arm 24 and weight 26 are swung from; a point beyond one side of a plane passing through the axis of the shaft 21 to a point at the opposite side, and the weight '26 is positioned adjacent the pipe 14. As the arm 24 describes the said swinging movement, the pin 25 is brought in contact with the ear 23 upon the block 22 adjacent the pipe 24 and the walking beam 20 is swung so that the valve member 12 is moved, and its upper end is carried above the port 11 and the upper end of the valve member 16 is brought below the port 15. from the cylinder 1 through the port 15- and pipe 14, and water may flow into the cylinder 1 through the body 3 and past the valve 6. As the level of the water in the cylinder rises, the float 31 is broughtin contact with head 28 and the said head together with the free end of the lever 27 are elevated and the parts are moved to bring them to the position stated at the initial description of the operation.

The arrangement of the parts as shown in Fig. 2 of the drawings, where a plurality of units are illustrated connectedtogether, the valve member 12 is hollow throughout the major portion of its length and is provided at one side with a port 32 (see Fig. 4) adapted to register at times with a pipe 33 which passes through the uppermost head or the first unit and connects with the pipe 10 in the second unit of the series. The water outlet pipes 8 are led down along the outer side of the units and connect with the interiors of the cylinders through the lowermost head, and the pipes 8 are joined at their upper ends with a single stand pipe 24 by means of a T 35. The upper ends of the pipes 14 of both units connect with a T 36, which in turn is connected withithe T 35 by means of a nipple 37. Aside from the variations just mentioned, the other structural details of both of theunits shown in Fig. 2are the counterparts of those shown in Fig. 1.

The operation of the arrangement of parts as shown in Fig. 2is as follows: Air is admitted through the pipe 10 into the first cylinder or unit through the port 11, and during the time that it is forcing the water out of the firstunit, the port 32 in the valve member 12 is positioned below the end of the pipe 33 which connects with the pipe 10. hen the float 31 in the first unit descends and then ascends asthe water. is flowing into the cylinder of the first unit the upper end of the valve member 12 is moved above the port 11 and the upper end of the valve member 16 is moved below the port 15 in the pipe 14. At the same time the port 32 in the valve member 12 is" brought into Thus the air may escape' register with the lower end of the pipe 33. 7

Thus the air passes from the pipe 10 and through the pipe 33 into thecylinder at the second unit of the pump, and the parts located in the second unit are operated in a manner the same as that hereinbefore de scribed in conjunction with the structural arrangement shown in" Fig. '1. As thefloat 31 in the cylinder of the first unit moves to the uppermost end of its path it operates the parts which are located in the upper portion of the cylinder of the first unit, and the upper end of the valve member 16 is moved above the port 15 in the pipe 14; and the upper end of the valve member 12 is brought to a point below the port 11 in the pipe 10. When the float 31 comes in contact with the stop 30, the port 15 is opened, the port 11 is closed and the port 32 is brought into register with the end of the pipe 83. This action continues to take place throughout the operation of the pump, consequently it will be seen that the water from both of the units of the pump is forced in columns through the pipes 8 into the stand pipe 24:. The air which is exhausted from the cylinders of -both units through the pipes 14 passes through the T 36 and nipple 37 into the T and under the column of water in the stand pipe 34. Inasmuch as the check valves 9 prevent the pressure from passing down along the pipes 8 into the lower portions of the cylinders 1, the volumes of air which are admitted into the lower end of the stand pipe 2% assist in elevating the column of water along the same. Furthermore there is no back pressure from the air in the lower portions of the cylinders.

From the above description taken in conjunction with the accompanying drawing it will be seen that a pump of simple and durable structural arrangement is provided and that the same may be economically used for utilizing a column of air under low pressure for elevating a column of water, practically in a constant and uniform stream.

Having described the invention what is claimed is A pump comprising a plurality of cylinders each provided at its lower end with a water inlet valve, pipes communicating with the lower portions of the cylinders and connected together at their upper ends, air inlet pipes located in the upper ends of both cylinders, a pipe connecting the said air in let pipes together, said air inlet pipes having at their sides ports, air exhaust pipes located in the upper ends of the cylinders and having ports, said air exhaust pipes being connected together and communicating with the first mentioned pipes, valve members located in the air inlet and air exhaust pipes of the cylinders, walking beams located in the cylinders and operatively connecting the valve members in the air inlet and air exhaust pipes of the respective cylinders together and float operated means located one in each cylinder and operatively connected with the walking beams.

In testimony whereof I aflix my signature in presence of two witnesses.

MARION G. WALLS.

WVitnesses:

GEORGE VVEsr, MARION H. WALLs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

